Discussion:
Owner Operator

Clark C18CL Mast Hydraulics will not operate intermittently after start up. Transaxle Hydraulics work properly. Started to default occasionally and now most every time. I have driven over rough terrain to most likely shake a control valve loose and it works until I shut it off again. I think it is a 2012 model year.

Appreciate any info.
Thank you,

VBIFWM
  • Posted 8 Sep 2025 01:52
  • By VBIFWM
  • joined 6 Sep'25 - 4 messages
  • Indiana, United States
General Fab, Weld, Machine specialty Shop.
Showing items 1 - 6 of 6 results.
I will get the DVM out and check as you suggested.

Thank you John.
  • Posted 10 Sep 2025 05:12
  • By VBIFWM
  • joined 6 Sep'25 - 4 messages
  • Indiana, United States
General Fab, Weld, Machine specialty Shop.
Yes , see the solenoids ? Make sure as key is on and sitting in seat that you have battery volts to them also check the plugs on them as well one is a lock out solenoid it cuts out hyds if not in seat
  • Posted 9 Sep 2025 09:28
  • By John_Bradley
  • joined 10 Aug'22 - 252 messages
  • Texas, United States
Jb69
Is this the valve you were concerned with?
  • Posted 9 Sep 2025 08:37
  • By VBIFWM
  • joined 6 Sep'25 - 4 messages
  • Indiana, United States
General Fab, Weld, Machine specialty Shop.
Can you post picture of control valve ?
Some have a solenoid that shuts off hyd
Unless on seat if it does it will be mounted on valve and has two wires a positive and negative check the plug for voltage while sitting in seat could be a bad connection and that's why it works when hit a bump also check for loose fuses etc
  • Posted 9 Sep 2025 07:09
  • By John_Bradley
  • joined 10 Aug'22 - 252 messages
  • Texas, United States
Jb69
This Machine has the three individual levers, Mast raise/lower, Mast tilt, Side shifter.
  • Posted 9 Sep 2025 06:57
  • By VBIFWM
  • joined 6 Sep'25 - 4 messages
  • Indiana, United States
General Fab, Weld, Machine specialty Shop.
Does this lift have joystick or levers for hyds ?
I ask because they had option for joysticks
Electronic lift etc instead of lever and rod
  • Posted 9 Sep 2025 03:38
  • By John_Bradley
  • joined 10 Aug'22 - 252 messages
  • Texas, United States
Jb69

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